Sleigh-knee.



'P. A.' STENBORG. 4

SLEIGH KNEE.

. APPLIOATION FILED DEO.22,1909. A 980,448. Patented 1311.3, 1911.

BBHEETS-BHBET 1.

F. A. STENBORG.

SLEI'GH KNEE.

- APPLIGATION FILED 1120. 22.1909.

Patented Jan'. 3, 1911.

2 SHEETS-SHEET 2.

l/ll/ 111 UNITED STATES PATENT OFFICE.

FREDERICK A. STENBORG, OF WOOD RIVER, WISCONSIN.

SLEIGH-KNEE.

esoaas.

To all whom it may concern:

Be it known that I, FREDERICK A. STEN- ono, a citizen of the UnitedStates, residing at Wood River, in the county of Burnett and State ofWisconsin, have invented certain new and useful Improvements in Sleigh-Knees, of which the following is a specification.

This invention relates to certain new and useful improvements in bobsleds.

The object of my invention is to provide a sled knee whereby each runnerof a bob sled is permitted a movement independent of the other runners,so that the running gear is not subjected to a strain or vrackingmovement in the use of the sled upon uneven surfaces.

With these and other objects in view, the present invention consists inthe combination and arrangement of parts as will be hereinafter morefully described and particularly pointed out in the appended claims, itbeing understood that changes in the specific structure shown anddescribed may be made within the scope of the claims without departingfrom the spirit of the invention.

In the drawings forming a portion of this specification, and in whichlike numerals of reference indicatevsimilar parts in the several views,Figure 1 shows a side elevation of a sled runner embodying my invention,Fig. 2 is an end View thereof, Fig. 3 is a top view, Fig. 4 is anenlarged detached detail disclosing the stand and connected springs,Fig. 5 shows a central sectional view of the saddle plate, Fig. 6 showsa modication of my device, Fig. 7 is a plan view of the securing footand collar with the stand removed therefrom.

In the accompanying drawings, t-he numeral 10 designates a sled runnerprovided with my improved knee, which includes the securing foot 11,having the two oppositely positioned side flanges 9 provided withsuitable rivet'openings, said foot being also secured to the runner bymeans of the bolts 13. The upper surface of this securing foot forms theriding shoulder 14 from which extends the collar 15, vsaid collar beingapproximately oblong and having the rounded ends, as shown in Fig. 7 ofthe drawings and being adapted for supporting the upstandingapproximately V-shaped stand having the upper rounded bearing face 17.This stand 16 is preferably in the form of a round bar of metal firmlyembedded within the Speciication of Letterslatent.

Application filed December 22, 1909.

Patented Jan. 3, 1911. Serial No.v 534,506.

foot as disclosed, and said foot is also secured to the runner by meansof the bolts 13. Removably held to this stand 16 and snugly surroundingth-e collar 15 and being held in frictional contact therewith is thehollow standard 20, having the two oppositely positioned bearingshoulders 22 which are curved, and extending from these shoulders arethe projected guide ears 21 arranged to be held in frictional contactwith the side of the securing foot 11. The lower curved bearingshoulders 22 are arranged to rock upon the shoulder 14` the end of thestandard being carried upon the collar l5.

The upper inner end of the standard 8 is slightly arched and forms a rubsurface contacting with the upper end 17 of the stand 16 as shown. Uponopposite ends, the standard 20 is provided with the outstanding ears 24which have a slot at their upper ends, and a bolt opening near theirupper ends to receive the bolt 31 as disclosed. The standard iscontinued upward to provide the side flanges 23 through which extend thesecuring rivets 27. Proximal to these ears 24, I provide the lugs 28,these lugs being arranged to receive the crank bolts 29 secured by meansof suitable nuts. The standard is also provided with the outwardlyextending securing plates 25 and 26 through which are extended the bolts36 and 36 and through the medium of which, the beam 5 is secured inposition.

Held to the bolt 31 and projecting beyond the upper ends of the ears 24,are the springs 30. As shown in the drawings two such leaf springs 30are disclosed which are arranged at their lower ends to contact with thestand 16.

IIeld between the flanges 23 of the st-andards 20, is the beam 5 whichabove is provided with the saddle plate 35, having the groove 38 theupper surface 38 of which is curved. The plate 35 is projected above inthe form of the oppositely positioned ribs 37, and positioned adjacentto this transverse groove 38 are the ribs 39 between which the crankbolt 29 is held as shown. In addition to the crank bolt 29, the saddleplate 35 is secured to the beam 5 by means of the bolt 36. Secured tothe runner 10 by means of suitable bolts, is the rave comprising the twosecuring ears 44 from which extend the brace members 43 which arecontinued in the stop shoulders 42 between which is held the curvedupperportion 41 of this rave. This upper curved portion 41 is arranged to beslidably held within the groove 38 of the saddle plate 35 as disclosedin the drawings.

The upper projecting ends of the leaf j springs 3() are arranged tocontact with these stop shoulders 42. This construction then permits thestandards 20 to rock within certain limits, the rocking movement howeverbeing against the tension of the two springs 3.0. rlhe standard 20 isheld against any vertica-.l5 displacement by means of the rave, while atits lower end the standard is conined byl means oi the collar 15 and theguide ears12f1. An incident of convenience to.- this arrangement ofdevices for securingl a runner to a beam, isv found in that the strainincident to the sled being drawn over uneven surfaces, is eliminated,the change of position assumed by the different runners beingcompensated without racking theV running gear. While the springs 30 addto the eiiiciency of the device, these springs are not absolutelynecessary. The interposition oi these springs between the rave and thestandards however, prevent any rattling of the instrumentalities.

From the foregoing it will be seen that the standard 20 is permitted arocking movement at its. upper end upon the upper end 17 of the stand i6while also being permitted a rocking movement upon its lower curvedbearing shoulders 22.

My device is light, neat and simple of construction, and the variousparts are all readily accessible and adjustable, to their respectivesupporting members.

In. Fig. 6- li show a modification in which the springs 50. are heldwithin the standard. rEhe rave is curved' and has the bracket 51 securedto the hase `52, byy means of the bolt 53. It is oi course understoodthat the stand is similarly embedded within the foot, but in thisinstance the upper ends of the arms arewelded or otherwise securedtogether.

It is, of cou-rse, understood that if desired the base or saddle platescan be secured to a metallic runner.

Having thus described my said invention what I claim as new anddesire tosecure by United States Inet-ters Patent is:

' 1. In a device of the character' described, the combination with arunner having a reduced foot forming a supporting shoulder and avertically disposed stand having an upper curved edge; of a hollowstandard surrounding' said stand, said standard having a lower roundedbearing shoulder and an upper rubi plate, said shoulder being adapted torest on said sup: orting shoulder of the foot and a rave to ho d saidstandard to said stand. v

2'. combination with a sled runner, a securing /ioot having a shoulderand a col'- lar extending therefrom, of a stand carried y by saidcollar, a hollow standard having two oppositely positioned curved ridingedges held upon said shoulder, said standard working about said collar,springs carried by said standard and contacting with said stand, of abeam, a saddle plate carried by said beam i having a groove, and a ravecarried by said runner and held within said groove.

3. In a device of the character described, the combination with arunner, of a foot secured to said runner having a shoulder from whichextends a collar supporting an upstanding V-shaped stand having an upperrounded bearing end, of a hollow standard having two lower curvedbearing ends arranged to ride upon said shoulder, the lower end of saidstandard frictionally engaging said collar, the upper end of saidstandard contacting with the upper end of said stand, said standardhaving oppositely positioned slots near the upper end, leaf springs heldvwithin said standard upon opposite sides and projecting through saidslots, a beam carried by said standard, a saddle plate carried by saidbeam, said saddle plate having a groove therein and a rave secured tosaid runner having an upper curved portion held within said saddlegroove, said springs contacting with said rave.

et. In a device of tliecharacter described, the combination with arunner, of a foot secured to said runner having a shoulder from whichextends an oblong collar supporting an approximately V-shaped upstandingstand having an upper rounded bearin end, of a hollow standard havingtwo ower curved bearing ends arranged to rock upon said shoulder, andoppositely positioned gu-ide ears held adjacent to said securing foot,the lower end of said stand rictionally engaging said collar, the upperend of said standard contacting with the upper end of said stand, saidstandard having oppositely positioned slots near the upper end, leafsprings held within said standard upon opposite sides and projectingthrough said standard, said springs contacting with said stand, a beamcarried by said standard, a saddle plate carried by said beam, and arave secured to said runner having an upper curved portion tei-minatingrin 'oppositely positioned stop shoulders, said springs working againstsaid stopy shoulders, said curved rave portion being held within saidsaddle groove.

In testimony whereof I aihx my signature, in presence of two witnesses.

FREDERICK A.. STENBORG.

VVitn-esses F. G. DAHLBERG, Tiios. Tonnnrsoia.A

